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4PLCProgram<br />
4.4 Description of blocks<br />
4.4.2 <strong>ShopMill</strong> interface DB82<br />
Description of<br />
function<br />
Overview for active<br />
<strong>ShopMill</strong> PLC<br />
4-42<br />
12.01<br />
The <strong>ShopMill</strong> PLC program also requires an interface to the PLC program in<br />
addition to the internal interface to the user interface or to the NC interface. This<br />
is provided in the <strong>ShopMill</strong> interface DB82.<br />
The machine control panel’s signals (<strong>ShopMill</strong> operating modes Reset, Start,<br />
Stop, Spindle clockwise/counter-clockwise/off, etc.) must be input into this interface<br />
by PLC user program part 1. The <strong>ShopMill</strong> PLC program then carries out<br />
the relevant actions and returns the current status to DB82. This can then be<br />
assessed by PLC user program part 2.<br />
The figure below shows the connections for the active <strong>ShopMill</strong> PLC program.<br />
MPI bus<br />
HMI<br />
interface<br />
<strong>ShopMill</strong><br />
PLC<br />
program<br />
PCU module<br />
DB81<br />
FC30<br />
Base<br />
signals<br />
Data<br />
transfer<br />
Outputs<br />
DB82<br />
Inputs<br />
User program<br />
DB10 DB11 DB21<br />
NC Mode<br />
group<br />
Fig. 4-2 <strong>ShopMill</strong> operation<br />
Inputs<br />
IB 0...7<br />
Outputs<br />
QB 0...7<br />
Inputs<br />
(keys,<br />
switches)<br />
Active<br />
Standard interface signals<br />
OP032S operator panel<br />
Outputs<br />
(indicators, etc.)<br />
<strong>ShopMill</strong> interface<br />
Channel<br />
E Siemens AG, 2001. All rights reserved<br />
<strong>SINUMERIK</strong> <strong>840D</strong>/<strong>810D</strong> Description of Functions <strong>ShopMill</strong> (FBSP) - 12.01 Edition
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